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EP2829326B1 - Vegetable grinding device with asymmetrical feed hopper - Google Patents

Vegetable grinding device with asymmetrical feed hopper Download PDF

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Publication number
EP2829326B1
EP2829326B1 EP14173778.3A EP14173778A EP2829326B1 EP 2829326 B1 EP2829326 B1 EP 2829326B1 EP 14173778 A EP14173778 A EP 14173778A EP 2829326 B1 EP2829326 B1 EP 2829326B1
Authority
EP
European Patent Office
Prior art keywords
opening
axis
belt
hopper
feed hopper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP14173778.3A
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German (de)
French (fr)
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EP2829326A1 (en
Inventor
Michel Bugnot
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2241—Feed means of conveyor belt type
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/002—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees for comminuting plant waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/066—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for garden waste

Definitions

  • the present invention relates to a plant shredder.
  • Plant shredders are used more and more to reduce the volume of small branches resulting for example from the size of the hedges. These are generally small grinders which have a feed opening (grinding window) of width often smaller than the length of some of the branches which it must swallow.
  • a crusher of this type according to the preamble of claim 1 is for example described in the document DE 16 42 677 A1 .
  • This mechanism most often includes a hopper, the side and top walls of which converge towards the feed window equipped with a bottom drive mat and sometimes with an upper roller or mat to help drive the product through the grinding window.
  • the invention provides a plant crusher comprising grinding means disposed behind an opening forming the outlet of a feed hopper provided with a lower drive belt and an upper wall converging towards the belt at the opening, characterized in that, with respect to a median longitudinal axis of the mill, the axis of the lower belt and the opening aforementioned are laterally offset, the side walls of the hopper converging towards the opening asymmetrically with respect to the axis of the lower belt at least in the vicinity of this opening.
  • the branches loaded at the entrance to the hopper are driven by the lower carpet towards the window in an area of the latter which is not median but rather on the side of the side wall which converges towards the axis of the carpet under the lowest incidence.
  • the branches therefore tend to be more braked by the opposite side wall which causes their rotation before reaching the window so that any branching transverse to the carpet is reoriented during its training and enters the window by its end close to the least incident wall. There is therefore no blockage of transverse branches longer than the width of the window.
  • the shredder 1 represented comprises a lower chassis 2 equipped with rolling means on the ground 3 and forwards in a direction A of movement, of means for coupling this chassis to a tractor vehicle (a motor vehicle by example).
  • a tractor vehicle a motor vehicle by example
  • the chassis 1 carries at the rear a hopper 5 for receiving the branches to be reduced and at the front, a grinding unit 6 which comprises a chute 7 for discharging the grinding product.
  • the assembly has a longitudinal median axis 8 which, in this case, is perpendicular to the axis of rotation 9a of the grinding rotor 9.
  • the latter is located behind a feed opening 10.
  • the lower and upper edges of this opening are materialized on the one hand, the charging end of a drive belt 11 which belongs to the lower wall of the hopper and on the other hand , a roller (or mat) driving the product 12 overhanging said end of the lower mat.
  • the central axis 8 of the mill will be defined as parallel to the general direction A of transfer of the product inside the hopper, that is to say parallel to the belt 11.
  • the median axis 11a of the belt 11 and the opening 10 are offset with respect to the median axis 8 of the mill.
  • the driving elements of the crusher which drive the grinding rotor 9, the feed belt 11 and the roller 12 as well as the transmission members which connect them are housed under a casing 13 which extends in front of the hopper , in the space freed up by the offset described above.
  • the drive means for driving the active members can be summarized as a transmission chain connected to the power take-off of a tractor.
  • the side walls 5a and 5b of the hopper are converging asymmetrically towards this opening relative to the axis 11a of the feed belt 11.
  • the wall 5a has an incidence on the axis 11a more pronounced than the wall 5b.
  • the rear part of the hopper is centered on the median axis 8 of the mill, that is to say that the side walls are, in this part, parallel and equidistant from the axis 8. It is in this part that the branches are deposited to then be driven by the lower belt 11, thanks in particular to the teeth 11b with which it is equipped.
  • any layup substantially transverse to the carpet 11 is driven rather in the vicinity of its end close to the wall 5b while its opposite end is braked by the wall 5a more "convergent" than the other, which causes a reorientation of the branching and leads to the latter crossing the window 10 via this end close to the wall 5b. This prevents obstruction of the window by transverse branches and stopping the crusher to eliminate the jam.
  • the wall 5b may be almost parallel to the mat 11.
  • the general asymmetric geometry of the shredding assembly according to the invention is a simple and economical solution to the problem of stuffing small shredders intended for the reduction of pruning waste or light pruning or hedge trimming.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Disintegrating Or Milling (AREA)

Description

La présente invention concerne un broyeur de végétaux.The present invention relates to a plant shredder.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

On utilise de plus en plus des broyeurs de végétaux pour diminuer le volume de petits branchages résultant par exemple de la taille des haies. Ce sont en général de petits broyeurs qui présentent une ouverture d'alimentation (fenêtre de broyage) de largeur souvent plus petite que la longueur de certains des branchages qu'elle doit engloutir. Un broyeur de ce type selon le préambule de la revendication 1 est par exemple décrit dans le document DE 16 42 677 A1 .Plant shredders are used more and more to reduce the volume of small branches resulting for example from the size of the hedges. These are generally small grinders which have a feed opening (grinding window) of width often smaller than the length of some of the branches which it must swallow. A crusher of this type according to the preamble of claim 1 is for example described in the document DE 16 42 677 A1 .

Il se produit donc un engorgement juste en amont de cette ouverture qui est obstruée par des branchages en travers et accumulés par le mécanisme d'alimentation du broyeur. Ce mécanisme comporte le plus souvent une trémie dont les parois latérales et supérieure convergent vers la fenêtre d'alimentation équipée d'un tapis d'entraînement inférieur et parfois d'un rouleau ou tapis supérieur pour aider à l'entraînement du produit au travers de la fenêtre de broyage.There is therefore a blockage just upstream of this opening which is obstructed by cross branches and accumulated by the feed mechanism of the crusher. This mechanism most often includes a hopper, the side and top walls of which converge towards the feed window equipped with a bottom drive mat and sometimes with an upper roller or mat to help drive the product through the grinding window.

La solution à ce problème requiert de pouvoir orienter des branchages longs de manière qu'ils atteignent la fenêtre de broyage par l'une de leurs extrémités. Les moyens à mettre en œuvre pour assurer cette orientation préalable sont à disposer en amont de cette fenêtre, dans la trémie. Comme il s'agit de petits broyeurs à puissance faible, ces moyens ne doivent pas être consommateurs de l'énergie installée, essentiellement consacrée au broyage et à l'évacuation du matériau réduit.The solution to this problem requires being able to orient long branches so that they reach the grinding window at one of their ends. The means to be implemented to ensure this prior orientation are to be placed upstream of this window, in the hopper. As these are small, low-power grinders, these means must not consume the installed energy, which is essentially devoted to grinding and removing the reduced material.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

C'est ainsi que l'invention propose un broyeur de végétaux comportant des moyens de broyage disposés derrière une ouverture formant la sortie d'une trémie d'alimentation pourvue d'un tapis inférieur d'entraînement et d'une paroi supérieure convergeant vers le tapis au niveau de l'ouverture, caractérisé en ce que, par rapport à un axe longitudinal médian du broyeur, l'axe du tapis inférieur et l'ouverture susdite sont latéralement décalés, les parois latérales de la trémie convergeant vers l'ouverture de manière asymétrique par rapport à l'axe du tapis inférieur au moins dans le voisinage de cette ouverture.Thus, the invention provides a plant crusher comprising grinding means disposed behind an opening forming the outlet of a feed hopper provided with a lower drive belt and an upper wall converging towards the belt at the opening, characterized in that, with respect to a median longitudinal axis of the mill, the axis of the lower belt and the opening aforementioned are laterally offset, the side walls of the hopper converging towards the opening asymmetrically with respect to the axis of the lower belt at least in the vicinity of this opening.

Les branchages chargés à l'entrée de la trémie sont entraînés par le tapis inférieur en direction de la fenêtre dans une zone de ces derniers qui n'est pas médiane mais plutôt du côté de la paroi latérale qui converge vers l'axe du tapis sous l'incidence la plus faible. Les branchages ont donc tendance à être plus freinés par la paroi latérale opposée ce qui provoque leur rotation avant d'atteindre la fenêtre si bien que tout branchage transversal au tapis se trouve réorienté lors de son entraînement et pénètre dans la fenêtre par son extrémité voisine de la paroi la moins incidente. Il ne se produit donc pas de blocage de branchages transversaux plus longs que la largeur de la fenêtre.The branches loaded at the entrance to the hopper are driven by the lower carpet towards the window in an area of the latter which is not median but rather on the side of the side wall which converges towards the axis of the carpet under the lowest incidence. The branches therefore tend to be more braked by the opposite side wall which causes their rotation before reaching the window so that any branching transverse to the carpet is reoriented during its training and enters the window by its end close to the least incident wall. There is therefore no blockage of transverse branches longer than the width of the window.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de dessus simplifiée et partiellement écorchée d'un broyeur conforme à l'invention,
  • la figure 2 illustre par une vue en perspective et en coupe selon le plan II-II de la figure 1 le broyeur selon l'invention.
Reference will be made to the appended drawings in which:
  • the figure 1 is a simplified and partially cutaway top view of a grinder according to the invention,
  • the figure 2 illustrated by a perspective and sectional view along plane II-II of the figure 1 the grinder according to the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Sur les figures, le broyeur 1 représenté comporte un châssis 2 inférieur équipé de moyens de roulement au sol 3 et vers l'avant dans un sens A de déplacement, de moyens d'attelage de ce châssis à un véhicule tracteur (un véhicule automobile par exemple).In the figures, the shredder 1 represented comprises a lower chassis 2 equipped with rolling means on the ground 3 and forwards in a direction A of movement, of means for coupling this chassis to a tractor vehicle (a motor vehicle by example).

Le châssis 1 porte à l'arrière une trémie 5 de réception des branchages à réduire et à l'avant, une unité de broyage 6 qui comprend une goulotte 7 d'évacuation du produit de broyage. L'ensemble possède un axe médian longitudinal 8 qui, dans le cas d'espèce, est perpendiculaire à l'axe de rotation 9a du rotor de broyage 9. Ce dernier se trouve derrière une ouverture 10 d'alimentation. Dans le cas des figures, les bords inférieurs et supérieurs de cette ouverture sont matérialisés par d'une part, l'extrémité d'enfournement d'un tapis d'entraînement 11 qui appartient à la paroi inférieure de la trémie et d'autre part, un rouleau (ou tapis) d'entraînement 12 du produit surplombant ladite extrémité du tapis inférieur.The chassis 1 carries at the rear a hopper 5 for receiving the branches to be reduced and at the front, a grinding unit 6 which comprises a chute 7 for discharging the grinding product. The assembly has a longitudinal median axis 8 which, in this case, is perpendicular to the axis of rotation 9a of the grinding rotor 9. The latter is located behind a feed opening 10. In the case of the figures, the lower and upper edges of this opening are materialized on the one hand, the charging end of a drive belt 11 which belongs to the lower wall of the hopper and on the other hand , a roller (or mat) driving the product 12 overhanging said end of the lower mat.

Ce n'est pas sortir du cadre de l'invention que de prévoir des moyens de broyage différents d'un rotor. On peut en effet employer un broyeur à disque, à fléaux ou autre. Dans ce cas, l'axe 8 médian du broyeur sera défini comme parallèle à la direction générale A de transfert du produit à l'intérieur de la trémie, c'est-à-dire parallèle au tapis 11.It is not outside the scope of the invention to provide means for grinding other than a rotor. It is indeed possible to use a disc, flail or other mill. In this case, the central axis 8 of the mill will be defined as parallel to the general direction A of transfer of the product inside the hopper, that is to say parallel to the belt 11.

Selon l'invention, l'axe 11a médian du tapis 11 et l'ouverture 10 sont décalés par rapport à l'axe médian 8 du broyeur. On notera que les éléments moteurs du broyeur qui animent le rotor de broyage 9, le tapis d'amenée 11 et le rouleau 12 ainsi que les organes de transmission qui les relient sont logés sous un capotage 13 qui s'étend en avant de la trémie, dans l'espace libéré par le décalage décrit ci-dessus. Dans une variante de réalisation du broyeur, les moyens moteurs d'entraînement des organes actifs peuvent se résumer à une chaîne de transmission reliée à la prise de force d'un tracteur.According to the invention, the median axis 11a of the belt 11 and the opening 10 are offset with respect to the median axis 8 of the mill. It will be noted that the driving elements of the crusher which drive the grinding rotor 9, the feed belt 11 and the roller 12 as well as the transmission members which connect them are housed under a casing 13 which extends in front of the hopper , in the space freed up by the offset described above. In an alternative embodiment of the crusher, the drive means for driving the active members can be summarized as a transmission chain connected to the power take-off of a tractor.

Selon une autre caractéristique de l'invention, les parois latérales 5a et 5b de la trémie, ici dans leur partie voisine de l'ouverture 10, sont convergentes de manière asymétrique vers cette ouverture par rapport à l'axe 11a du tapis d'amenée 11. En d'autres termes, la paroi 5a possède une incidence sur l'axe 11a plus prononcée que la paroi 5b.According to another characteristic of the invention, the side walls 5a and 5b of the hopper, here in their part close to the opening 10, are converging asymmetrically towards this opening relative to the axis 11a of the feed belt 11. In other words, the wall 5a has an incidence on the axis 11a more pronounced than the wall 5b.

On notera que dans le cas des figures, la partie arrière de la trémie est centrés sur l'axe médian 8 du broyeur c'est-à-dire que les parois latérales sont, dans cette partie, parallèles et équidistantes de l'axe 8. C'est dans cette partie que les branchages sont déposés pour être ensuite entrainés par le tapis inférieur 11, grâce notamment aux dents 11b dont il est équipé.It will be noted that in the case of the figures, the rear part of the hopper is centered on the median axis 8 of the mill, that is to say that the side walls are, in this part, parallel and equidistant from the axis 8. It is in this part that the branches are deposited to then be driven by the lower belt 11, thanks in particular to the teeth 11b with which it is equipped.

On comprend que tout banchage sensiblement transversal au tapis 11 est entraîné plutôt au voisinage de son extrémité voisine de la paroi 5b alors que son extrémité opposée est freinée par la paroi 5a plus "convergente" que l'autre, ce qui provoque une réorientation du branchage et conduit à ce que ce dernier traverse la fenêtre 10 par cette extrémité voisine de la paroi 5b. On évite ainsi l'obstruction de la fenêtre par des branchages transversaux et l'arrêt du broyeur pour éliminer le bourrage.It is understood that any layup substantially transverse to the carpet 11 is driven rather in the vicinity of its end close to the wall 5b while its opposite end is braked by the wall 5a more "convergent" than the other, which causes a reorientation of the branching and leads to the latter crossing the window 10 via this end close to the wall 5b. This prevents obstruction of the window by transverse branches and stopping the crusher to eliminate the jam.

Dans une variante de l'invention, la paroi 5b peut-être quasiment parallèle au tapis 11.In a variant of the invention, the wall 5b may be almost parallel to the mat 11.

La géométrie générale asymétrique de l'ensemble de broyage selon, l'invention est une solution simple et économique au problème du bourrage des broyeurs de faible capacité destiné à la réduction des déchets d'élagages ou ébranchages légers ou de taillage de haies.The general asymmetric geometry of the shredding assembly according to the invention is a simple and economical solution to the problem of stuffing small shredders intended for the reduction of pruning waste or light pruning or hedge trimming.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit mais englobe toute variante entrant dans le champ de l'invention tel que définie par les revendications. Of course, the invention is not limited to the embodiment described but encompasses any variant coming within the scope of the invention as defined by the claims.

Claims (1)

  1. A plant grinder (1) comprising grinder means (9) located behind an opening (10) forming the outlet of a feed hopper (5) provided with a bottom drive belt (11) and a top wall converging towards the belt (11) at the opening (10), the grinder being characterized in that, relative to a longitudinal middle axis (8, A) of the grinder, the axis (11a) of the bottom belt (11) and the above-mentioned opening (10) are offset laterally, the side walls (5a, 5b) of the hopper (5) converging towards the opening (10) in a manner that is asymmetrical relative to the axis (11a) of the bottom belt, at least in the vicinity of said opening (10).
EP14173778.3A 2013-07-22 2014-06-24 Vegetable grinding device with asymmetrical feed hopper Revoked EP2829326B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1357195A FR3008628B1 (en) 2013-07-22 2013-07-22 VEGETABLE MILL WITH ASYMMETRIC FEEDER HOPPER

Publications (2)

Publication Number Publication Date
EP2829326A1 EP2829326A1 (en) 2015-01-28
EP2829326B1 true EP2829326B1 (en) 2020-04-08

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ID=49378467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14173778.3A Revoked EP2829326B1 (en) 2013-07-22 2014-06-24 Vegetable grinding device with asymmetrical feed hopper

Country Status (2)

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EP (1) EP2829326B1 (en)
FR (1) FR3008628B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109201708A (en) * 2018-10-18 2019-01-15 郑州邦企信息科技有限公司 A kind of dedicated waste treatment machine of marsh gas power generation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200618C (en)
DE1642677A1 (en) 1967-12-08 1972-04-13 Fritz Weber Machine for chopping long-fiber material, especially hop tendrils
US5005620A (en) 1990-04-17 1991-04-09 Morbark Industries, Inc. Drum-type wood chipper
US5667152A (en) 1995-05-30 1997-09-16 Mooring; Jonathan E. Safety system for a wood chipper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200618C (en)
DE1642677A1 (en) 1967-12-08 1972-04-13 Fritz Weber Machine for chopping long-fiber material, especially hop tendrils
US5005620A (en) 1990-04-17 1991-04-09 Morbark Industries, Inc. Drum-type wood chipper
US5667152A (en) 1995-05-30 1997-09-16 Mooring; Jonathan E. Safety system for a wood chipper

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Anhängerarbeitsmaschine Motorhackmaschine", TYPS JENSEN A2.2 ALLIGATOR, 29 August 1991 (1991-08-29)
ANONYMOUS: "Anhängerarbeitsmaschine Motorhackmaschine", TYPS JENSEN A2.2 ALLIGATOR, 4 June 1991 (1991-06-04)

Also Published As

Publication number Publication date
EP2829326A1 (en) 2015-01-28
FR3008628B1 (en) 2015-07-17
FR3008628A1 (en) 2015-01-23

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